Engineering
Material selection, part analysis and development, engineering calculations and injection-molding process support.
Material selection
Manufacturers around the world produce approximately 85,000 types of plastics. Material selection has a major effect on product quality, performance and cost.
1. Technical requirementsDefine the CTQ characteristics that are critical to quality
2. Material selectionSelect material that meets the CTQ requirements while minimizing cost
3. VerificationProduce a trial batch and test the product under laboratory conditions
4. ValidationTest the product under operating conditions
CTQ (Critical to Quality) is the accepted term for requirements needed to ensure quality. Correctly and completely defining them determines product quality, reliability and cost.
The company supports all four stages of material selection. This service is free of charge for SABIC Innovative Plastics materials.
Plastic-part design analysis
Injection molding imposes specific requirements on product geometry. Failure to follow them can reduce mechanical strength, cause surface defects, make the process less controllable and increase production cost.
The company reviews design documentation for compliance with injection-molding requirements and the material manufacturer’s recommendations. This service is free of charge for products made from SABIC Innovative Plastics materials.
Plastic-part development
We prepare design documentation that reflects the customer’s requirements, the material manufacturer’s recommendations and the needs of the injection-molding process. This helps achieve the required strength, surface quality, process control and production economy.
Stress analysis
Product reliability depends on loads in service. Calculating internal stresses and deformation helps optimize the design, select the correct material and prevent part failure.
The calculation requires the product geometry, material properties, support conditions and operating loads.
Runner-system analysis
A cold-runner mold system must be balanced and correctly dimensioned. Design errors can cause unstable filling, surface defects, dimensional variation and unnecessary material use.
The company reviews runner systems. This service is free of charge for products made from SABIC Innovative Plastics materials.
Processing support
Each combination of product, mold and injection-molding machine requires parameters that provide product quality while reducing cycle time.
InjectionSpeed and pressure
HoldingHolding time and pressure
ShotMaterial shot size
BarrelBarrel-zone and nozzle temperatures
MoldMold temperature
CoolingCooling time and overall cycle
Set-up is based on our experience, the material manufacturer’s recommendations and support from our partners. This service is free of charge for SABIC Innovative Plastics materials.
Equipment selection
Each part requires a mold and an injection-molding machine with suitable characteristics. Correct equipment selection affects product quality and production cost.
ShotMass or volume, including runners
MaterialMaterial type
ProductDrawing, sketch or sample
MoldNumber of cavities
LayoutPart layout relative to the parting plane
DimensionsMold dimensions in the open and closed positions
The company helps select injection-molding and auxiliary equipment. This service is free of charge for products made from SABIC Innovative Plastics materials.
